Do placeholders in SCSS need to be placed in a separate file?

Question

css

Hello.
If %stick-bottom { position: fixed; bottom: 0;}, is used not within the boundaries of one file, but in several, should such placeholders be moved to a separate file?

Answer 1

Answer the following questions for yourself:

1. What will I get if I do this, what are the pros and cons of this approach?
   
2. What will I get if I don't do this?
   
3. Why did I write a question on Toaster, when it's only my business - where and what do I put in my projects?